Zotero
Tried: Endnote, Wizfolio, Zotero; Also Known: Mendeley, Refworks. I never really try Endnote to the extend that I am comfortable to it. Having to figure out how to use it turned me away in a couple of minutes. However, I still need a bibliography software to manage citations and references for my thesis. Luckily, my senior pointed me to this wonderful and simple software, Zotero.